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The development history of enterprise IT architecture : How to build an IT architecture?

 The development history of enterprise IT architecture

When it comes to IT architecture, everyone is familiar with it. Some people say that IT architecture is a part of enterprise architecture, and it is combined with business architecture to create IT informatization construction suitable for the business. Others say that IT architecture is a methodology and a formulation for enterprises. IT construction strategies, standards, services, products, solutions, and corresponding IT vendors’ recommendations or decisions. No matter what, IT architecture is the foundation of enterprise IT informatization construction. It can effectively guide the development and execution of informatization projects. Today I will talk about the development process of enterprise IT architecture.


In the early days, there was no IT architecture. Information infrastructure and application systems were the so-called IT architecture. Later, with the introduction of the SOA concept, enterprises gradually developed a holistic view of IT construction, and the construction of information facilities began from the overall IT architecture level. Planning, now with the promotion of mobile, big data, cloud computing, and other technologies, new technology models, and business models are constantly emerging, and the IT architecture is evolving towards a more optimized architecture...\

IT architecture definition understanding

Speaking of IT architecture, it is bound to be related to the two words of enterprise architecture and business architecture. Business architecture refers to the business operation model, process system, organizational structure, geographical distribution, etc. of the enterprise. IT architecture and business architecture belong to enterprise architecture, and the two support each other cooperation.

 In terms of technical concepts, IT architecture is an IT framework that guides IT investment and design decisions and is a comprehensive blueprint for establishing an enterprise information system. It includes three parts: data architecture, application architecture, and technical architecture. A simple understanding is to plan what informatization needs to be built now, what informatization needs to be built in the future, what technical means to use, what to build, who builds, the order of construction, the premise of the need, etc. according to the business development model of the enterprise. 

1 Data architecture

Data architecture is the core of IT architecture. Data is the most direct and asset of an enterprise. It can display objective things in the truest manner. Enterprises will consider various aspects of planning in the construction of data architecture. Data architecture includes data inter-relationship. The integration of data, the logical relationship of data, the governance and application of data, the construction of data architecture will run through the entire process of enterprise IT architecture, from the initial simple data governance to the final data decision analysis. The specific content includes a clear definition of data domain, logic between system data, system data integration and interaction, data standard formulation, data security storage access, and control, etc.

 2 Application architecture

The application architecture inherits the strategic development direction and business model of the enterprise upwards, plans and guides the positioning and functions of various IT systems of the enterprise downwards, and provides the management of business functions and data assets. The application architecture includes application systems, business processes, and core functions. Generally, when an enterprise builds an application architecture, it plans the value, positioning, use, and construction sequence of the system according to business logic and requirements. The planning content includes: the design of functional modules, the scalability of the system, the degree of satisfaction of functional requirements and non-functional requirements and so on, the application architecture blueprint is finally issued, and the architecture will be continuously revised and improved as the construction progresses. 

3 Technical architecture

Technical architecture is a description of the logical software and hardware capabilities required to support business, data, and applications. It is also the technical infrastructure that supports application architecture and data architecture. It mainly includes the underlying IT infrastructure, technical platforms, components, technical standards, and technical logic. Etc., including security management, application software, application platform, physical environment, and system management. With the development of technology, the technical architecture of the enterprise will also make corresponding adjustments. Normally, the service-oriented model, the integration of technology platforms, and the optimization of the system are fixed parts of the architecture. 

The evolution of IT architecture

In the full life cycle of IT architecture, when it comes to the development process of IT informatization, there will always be a sentence: enterprise informatization has gone through the process of from scratch to existence, from existence to many, from many to scattered, after information the modernization era is facing a new stage of system integration, optimization of IT architecture, and enhancement of IT value. This sentence indeed speaks to the current IT status quo faced by many companies, but with the development of technology and the continuous improvement of corporate informatization awareness, many companies have gone through the integration period and are moving towards a higher stage, such as data governance analysis, Business process reengineering, artificial intelligence, big data, etc. are shown in the following figure, which introduces the evolution process of IT architecture, which will be divided into 5 stages. 

1 System construction period

The system construction period does not appear in the above figure, because the author does not intend to strictly divide it into the development process of enterprise IT architecture. As mentioned at the beginning, there is no IT architecture in the earliest stage. Information infrastructure and application systems are so-called IT architecture, with the gradual emergence of the SOA concept, so in this period, the company's concept of IT architecture is still relatively vague, but the system built during this period has contributed to the development of subsequent concepts.

The planning of the stage

The reason for this stage is very simple, that is, with the expansion of enterprise-scale, business growth, and process increase, it is necessary to rely on information systems to assist business management, reduce manual error rates, and save work efficiency. In fact, most companies will not build an information system in the early stage of establishment, because the number of employees and the number of business opportunities will not be too much in the early stage. Managers can clearly know the cost, profit, expenditure, and income of each month.; The number of current customers and business opportunities; the division of labor, functions, and performance of employees, and the future planning can be easily estimated.

 With the expansion of the scale of the enterprise and the expansion of business, there are no longer more than a dozen people, and the status of one person with multiple posts, managers can no longer consider the performance of all internal employees, project receipts, output, inventory, and other data and information. At this time, special departments will be set up to manage the company's proprietary business, such as the finance department, marketing department, personnel department, production department, purchasing department, etc., and the department heads will report the situation monthly or quarterly. As the business deepens, some business problems are gradually exposed. All businesses are based on manual status processing and statistics and presented in paper documents. This is labor-intensive and inefficient. It is not conducive to data preservation and traceability, and there is even a risk of manual concealment of errors. Cause inaccuracy of business data.

Based on the above situation, to ensure that enterprises better manage internal operations, the need for system construction has emerged.

Development Stage 

For companies that have initially built an information system, they will not build all business systems in one step. They usually build around the most basic operation support system, namely, managing money, managing people, and managing business. It is how much money is spent and who will spend it. Money, how much money you earn, how to get the money, etc. The financial system manages money in and out, the customer management system and business system manage incoming money, and the human system manages people and pays and spends money. The systems involved include the four kings of the system industry: finance, human resource management, customer relationship management, OA office, and core business systems. 

Different industries have different core business systems. Each industry has a corresponding business system, such as the sales system, procurement system, and planning system in the real estate industry; imaging system and HIS system in the medical industry; Engineering systems, BIM systems, video surveillance systems; MES, ERP, project systems in the the manufacturing industry, etc.

 2 System integration period

Companies that have reached this stage have usually built information systems in various departments and business areas. In the context of today’s diversified situation, business expansion and demands are constantly changing, followed by information systems. Continued growth and the IT environment is overwhelmed. To solve this phenomenon, the rise of the SOA concept has brought the overall architecture concept to the process of optimizing the IT architecture for enterprises. From the beginning of the system integration period to the subsequent construction phases, it can be said that the SOA concept and technology are fully utilized. 

The planning of the stage

As mentioned in the previous article, companies that have reached this stage have a certain foundation in terms of enterprise-scale and system construction. They have begun to take shape and continue to consolidate in terms of network infrastructure, application system construction, and information management and control systems. From business to informatization, it has been developing in a good direction, and informatization can continue to provide support for business. Many managers will be confused when they come to the stage of system integration. The system has been built in place and has been at the forefront of information construction. Why do employees still have low efficiency in handling business lost and forgotten passwords; multiple users using one account, business errors no one is responsible; the data of a single department is reported accurately, but the data integrated by each department is not reliable; the system is not used less, and the joint force is not obvious it produces the illusion that the application system is not in place and not enough.

 In fact, it is not that the system has not been built, but that too many application systems have been built without planning. There are many types of systems, platform technologies used by each system, standard specifications, interoperability interfaces, and technical architectures. Many data, information, and functions with common business cannot be effectively transferred between systems. Even processing a business requires employees to log in and log out of multiple different systems at the same time. Most of the time is spent in the system's data and information processing summary. To solve the above problems, enterprises have entered a period of system integration.

Development Stage

For the Department of Information Technology, the work performance is reflected in the development of the IT environment, so that informatization can bring effective help to the enterprise. Therefore, during the system integration period, the implementer will not only solve the problems of the internal system of the enterprise, but also help the enterprise. Managers and IT information departments establish an overall corporate architecture concept, including business architecture and IT architecture, to clarify the current construction content and solve problems, while helping to sort out the development content needed in the later stage, so that they have the overall view of the IT architecture.

Application integration

Realize the sharing of information, data, and functions between various business systems through the ESB Enterprise Service Bus, eliminate technical differences between different systems, such as business and financial integration, realize the document docking between the production business system and the financial system, and the document docking between the procurement and inventory systems and so on, to achieve the integration of application system functions.

Identity management

Through the IDM identity management platform, the unified management of groups, roles, and users is realized. With the manpower or OA system as the source, the unified synchronization of personnel changes is realized, and the unified identity authentication management realizes the single sign-on between multiple systems within the enterprise.

Portal integration

The IDM identity management platform is combined with the portal platform. Through menu integration, the functions of a single system are integrated into the Portal. The page integration is directly linked to the home page of the portal platform through the portlet method and link, and finally, the pages and functions of all systems are integrated in the portal. The same interface blurs the boundaries between systems. Employees only need to log in with their username and password to access the functions and pages of each application system, which feels like operating in one system. The portal platform built is the display window of enterprise IT value, not only for internal employees of the enterprise but also provides supplier portals, dealer portals, visitor portals, etc., for different business personnel to use. 

Mobile office

In the mobile office part, some companies use current mobile application systems, such as Microsoft Office Cloud Home, Facebook work, Google Office suite, DingTalk or Enterprise WeChat, to help them realize mobile office. During the system integration period, these mobile applications are often integrated on a unified mobile platform. Below, in addition to the system's own functions, it also includes system mobile functions such as finance, human resources, sales, and procurement, to create a mobile version of the application center. 

3 Data governance period

The data governance period is different from the system integration period. The system integration period does not distinguish between industries. Any enterprise has this aspect. Data governance has the characteristics of the industry. According to the different industries of the customers, the degree of manifestation of the needs is different, and some are obvious., Some are hidden, but data governance is the only way for every enterprise to develop informatization.

 

The Planning of the stage

System integration can help companies strengthen the management of internal operations, while data can help companies sort out business process development issues and make statistics on business results over a period. Data is an important resource for companies. Once they are reasonably and fully utilized, they can play a lot of usefulness. Value, especially in the current data age, almost every company knows this truth, and the effective use of data is data analysis. Many companies are eager to try this project, but they ignore the most basic premise. ——Data governance must stop the project or make a face-saving project, which cannot really bring out the value of the platform. 

Some companies have come to this stage because their IT planning has been built to this stage, and there are indeed internal data problems that have become increasingly prominent. For example, the internal data of the system cannot be circulated, the data sources of various systems are not unified, the data is redundant, missing, the content is inconsistent. Many data that need to be counted are still collected in manual form, which can neither guarantee timeliness nor accuracy. The data cannot be used effectively for the business. Some companies need to build a data analysis platform or business process. Reengineering and constructing a data governance project.

 

Development Stage

While deepening the development results of the first phase in this phase, it mainly conducts unified management of the data in the internal system of the enterprise, including the construction of master data management and data analysis platform, to meet the preliminary analysis of the enterprise's business. 

Master data governance

Before using the technology platform for master data governance, we must first solve the internal awareness and business problems of the enterprise. Before the project construction, we must help the enterprise to clarify how much data is in the current system, which data is useful, which data is repeated and data. In what form they exist; afterward, conduct business research and combing with various business departments to clarify which data can be used as the source and unify the data caliber. 

After the investigation and sorting, use the MDM master data management platform to model the current main data of the enterprise, such as: organization, personnel, positions, accounting subjects, customers and other master data standard modeling, unified coding specifications, historical data cleaning, etc.

 Data decision analysis

Data decision analysis at this stage mainly focuses on internal business application scenarios to realize data decision analysis between internal systems. The source of data is the data in the internal information system of the enterprise. According to the business division of different analysis structures, the managers of any enterprise will care about finances. Aspect data, followed by specific business data, such as: financial cost and profit analysis, output analysis, sales statistics, business opportunity statistics, personnel statistics, etc. 

Before the project was launched, the business was still investigated, sorting out the business indicators that need to be analyzed in the enterprise, and then using data analysis platform tools to establish a corporate decision-making analysis platform, combining metadata governance, data warehouse technology, and improving manual data and information statistics It provides real-time, intelligent, multi-dimensional operational data query and statistical analysis for managers. Data decision analysis platform tools are different from BI systems. They could support big data analysis and decision-making, including data collection, storage, processing analysis, forecasting, etc. BI can be integrated under the data decision analysis platform. 

4 Process reengineering period

This step of the informatization construction stage of an enterprise will be accompanied by the emergence of many concepts and technologies. If the first two stages have helped the enterprise lay a certain foundation, then at this stage the enterprise is carrying out a comprehensive process reengineering at the same time, usually According to the technological development situation, some products, and technologies suitable for the enterprise construction stage will be integrated to support the development of informatization together.

The planning of the stage

Nowadays, many companies have begun to conduct data governance analysis, even in the later stage of data governance analysis, and continue to make more in-depth use of data. This stage will also follow the trend of data development and assist companies in deeper data governance and analysis. But when it comes to business process reengineering, companies are generally unfamiliar with this concept or have deviations in understanding. They believe that process management capabilities already exist in the system construction or integration phase. In fact, the process management they refer to is only in a certain system. The workflow function of OA or a small process based on OA collaboration that connects part of the business involved in series is only, and it is not a real sense of cross-heterogeneous system process integration. 

Some of the problems of internal process separation in the enterprise are obvious and some are hidden. The obvious problems are manifested in the fact that there are online and offline parallel operations in the processing business within the enterprise or all rely on manual processing, and cross-approval documents need to be inter-departmental. Paper forms are passed around, etc.; hidden problems are manifested in the management of internal responsibilities of the enterprise, such as confusion of the business process approval nodes, serious multi-person approval or cross-authority approval, approval operations cannot be traced, and no one asks the phenomenon of responsibility, to a certain extent, reflects the internal position setting, division of responsibilities, and performance monitoring issues.

 Fusion data center

Recently, the technical concept of China-Taiwan architecture has penetrated the hearts of enterprises. Some companies that attach importance to informatization construction have begun to integrate the concept of data-based management while in-depth data governance analysis. Lay the foundation for the stage. In the data governance part, expand the scope of master data governance items, suppliers, materials, custom accounting items, etc., integrate the architecture and technology of the data center, establish a preliminary big data analysis platform, internal and external data decision-making, from partners, users, etc. data source. 

Business process reengineering

Realize the closed-loop management of the enterprise in a process-driven way and use the process as the driving force to force business problems. According to the business needs, the existing information system is integrated with the process, including the unified integration of the enterprise application center and the process management center of the construction results of the previous stage. Realize business cross-system (finance, ERP, portal) tracking management, etc. The implementation tool is the BPM process integration platform. The integrated content is integrated into the enterprise application center in a process-centric manner. Through unified portals, user habits, etc., it provides enterprises with management automation and comprehensive integrated service capabilities, so that the business can be standardized and Orderly operation, fundamentally solve the problems of management inefficiency, disorder, etc., from the original "people looking for things" to "things looking for people", realizing agile management.

 5 Intelligent Enterprise Period

The so-called intelligent enterprise stage is the stage of comprehensive realization of intelligent management. The ideal state is human-machine coordination. The current big data analysis, Internet of Things, and artificial intelligence are all products of this stage. The stage distance of the intelligent enterprise stage is not as far as we imagined. So far away, the times are progressing, and technology is developing. If the integration and coordination of technology, business processes, management systems, organizational structures and other aspects are achieved, it is just around the corner.

The planning of the stage

From the perspective of long-term development of a company, it is not enough to manage people, money, and business internally. Internal decision-making can only ensure that the company's short-term operation and management will be effective but cannot support the company's development and growth in a changing market environment. If you want to go long-term, you must have the ability to develop sustainably, prevent risks, predict the future, and support innovation. At this time, the need to use internal and external data of the enterprise has emerged. It is necessary to collect, store, and calculate a series of related data such as government, banks, business partners, industry/industry upstream and downstream, online social networking, etc., and find the rules between the data. The mining of policies and user information, according to different market environments, tailor-made enterprise development plans, to effectively control market risks, promote decision-making development, and enhance comprehensive competitiveness.

 Development stage

As stated in the premise, to do well in this stage, we must have comprehensive support in all aspects. First, we need to deepen the IT construction results of the previous stages and lay a solid foundation for informatization. Later, under the support of cloud computing, Internet of Things, artificial intelligence, and computer technology, combined with existing data decision analysis platforms and big data-related technologies Hadoop, HBase, Spark, Storm and other tools, data collection, processing, algorithm prediction, and real-time are realized. Analysis, machine learning, configuration display and other technical links, complete the construction of an ecosystem that traces the past, analyzes the present, and predicts the future, helping companies focus on their main business, achieve intensive cultivation of production capacity, eliminate process production capacity, complement development shortcomings, and enhance core competitiveness.

The informatization of the intelligent enterprise phase will steadily move towards the stage where the value of the results is continuously manifested, which is manifested in the deep integration of the whole system, seamless connection between business systems, effective risk management and control, and continuous support for informatization construction. At the same time, it is based on the openness of the construction platform And scalability, not only can continue to support the smooth access of the enterprise's subsequent construction of application systems, the iterative advancement of informatization, but also support the subsequent introduction of new technologies, leading the simultaneous development of the enterprise's information age, and the integration of enterprise IT and business , IT promotes business upgrades and business innovations to ensure the competitive advantage of enterprises; the rapid development of business in turn places further demands on IT, thereby promoting the comprehensive and in-depth development of IT construction.

 How to build an IT architecture?

The construction of enterprise IT architecture is a long-term task. It cannot be effective in a short period of time. It requires long-term investment and maintenance. Every enterprise should establish an IT architecture suitable for future development. What kind of IT architecture is needed? It is suitable for enterprises, and it is a subject that needs in-depth research. Architecture is not just talking about it, it needs to be combined with a variety of factors for overall consideration, including development strategy, planning goals, organizational structure, business processes, data resources, application systems, infrastructure, etc., start with planning and integration as the entry point get on.

 1 Overall planning and overall consideration

The construction of enterprise informatization cannot be accomplished overnight, let alone a structure that must be integrated with the situation (internal and external), starting with the plan, and gradually refined in the process of planning. Blindly following the trend of the construction will still have information islands, process fragmentation, unsuitable architecture, etc., causing the repetition of informatization problems, and ultimately leading to IT development becoming tasteless.

 In terms of planning time, it does not mean that the longer the planning time, the better. Because policies, market environment, science and technology and their own business are all volatile, companies can formulate 3-5 years based on current business and foreseeable future development. Information planning. In terms of planning content, it is necessary to stand at the level of the overall enterprise architecture, combined with comprehensive planning of the business architecture to improve the scientific, complete, and enforceable IT planning, to ensure the mutual operation of business processes, the rational support of the information system, and the construction steps in an orderly manner, advance in-depth step by step.

 2 Support business and promote development.

At any time, IT architecture should be premised on supporting business and assisting innovation. For the business development environment of an enterprise, change is the main theme, and the only constant is change. Changes in policies, environments, and businesses will be normal and strategic changes. It will inevitably lead to changes in the business architecture, and the IT architecture, as the support of the business architecture, also needs to change with the change. The two are in a state of mutual restraint.

In the planning and design of IT architecture, it is necessary to build a unified standard platform, output unified standard specifications and service interfaces, so that the results of informatization construction can continue to provide support for the business. In terms of IT construction planning, the connected system or platform must be able to support subsequent system access, the expansion of new business functions, and the integration of emerging technology concepts; in terms of business development concepts, IT systems must be used to promote business upgrades and continue to collect Provide the latest policies and industry upstream and downstream information and provide strategic guidance and analysis for business innovation.

 3 Integrated integration and unified governance

The author has no objection to the concept of "building an information system based on the current business development situation of the enterprise", but in the planning of the IT architecture, it is recommended to start with the integration and integration as the starting point, and it is not difficult to pass through the several stages of the IT architecture evolution process. It is found that the amount of application construction in the system construction period is significantly higher than the amount of platform construction in the later construction stage. Depending on the size of the enterprise, there are as few as dozens or as many as hundreds of systems. If the heterogeneous disconnection between the systems is not resolved Problems, it is difficult to carry out follow-up construction.

 IT architecture is not an independent part of the architecture. Separate applications and platforms can only be counted as a small part of the architecture. What companies really need to build is an IT support platform with strong compatibility to provide orderly information resources. Environment, in the process of planning, it is necessary to sort out the relationships between systems, business process trends, integration relationships, etc.

4 Strengthen management and control, and iterative rise.

In the IT architecture planning and subsequent gradual implementation, IT-related management, and control, such as a series of plans for systems, teams, and tools, are required to serve as the basis for the successful construction of IT architecture. The system includes all employees’ awareness of IT informatization, unified standards, and specifications in the use of the system, communication mechanisms for project construction, etc. The team includes the construction of an IT team. In addition to basic technical capabilities, personnel must have forward-looking and IT architecture the overall macroscopic nature can promote the construction and implementation of the architecture; the tools are the application and platform products for the construction of IT architecture, and the evaluation and selection from a series of product quality, scalability, after-sales service, etc.

The construction of an enterprise's IT architecture is a process that requires long-term investment, involving organization, business, process, technology, situation, and other aspects. During the construction process, it will be updated and iterated continuously, discarding the dross, and constantly innovating. With today’s changing situation and diversified business development, each enterprise’s strategy and business situation are different. The IT architecture construction process described in this article may not be in line with the situation of all enterprises, but it will never change. The concepts and methods of IT architecture planning can be reused, and ultimately achieve the value of IT in a unified infrastructure, underlying applications, platform integration, and data utilization.

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