Main measures of system integration quality control
The quality control of information system integration is very important. Only by implementing strict quality control can we truly achieve the goal of quality construction of information systems and ensure the return on investment of information construction.
Main measures of quality control
In the design stage of the information system, the main measures of quality control are reflected in the following five aspects:
(1) Comprehensively and systematically understand user needs
Clearly defined user requirements are the key to the success of the entire system. Integrators should use scientific methods to investigate user needs. This needs survey should include not only the opinions of unit managers and system maintainers, but also the opinions of end users (internal users and external users) to ensure the integrity of user needs At the same time, in order to ensure the accuracy of user needs, the process of formulating user needs should use an iterative method, by repeatedly consulting users' opinions, and gradually improving user needs.
(2) Fully discuss the system design plan
The system design plan describes the abstract model of the built system, so the scientific and rationality of the design plan has an extremely important impact on the quality of the built system. Therefore, the system design plan should be fully discussed with the construction unit and the supervision organization to improve the quality of the system design. Among them, the system design process should pay attention to: user requirements, technical maturity and advancement, system security, system scalability, quality compliance of selected products, compliance with laws and regulations, etc.
(3) Design a complete system verification plan
In the system design stage, the integrator should formulate a complete system verification plan based on the user requirements and the system design plan. The verification method of the information system mainly includes: the simulation method and the test method. At present, there are already some mature simulation platforms for the design of network systems, which can be used by integrators; testing a commonly used quality verification method, but integrators should fully consider the compliance of user needs when designing field test solutions.
(4) Determine the feasible quality control plan
In order to ensure the quality of system implementation, the system integrator should formulate a set of feasible system quality control schemes based on the system design scheme, so as to effectively guide the system implementation process. The quality control plan should determine the quality control objectives, control measures, process flow of engineering quality problems, and the responsibility requirements of the system implementation personnel at various stages of system implementation.
(5) Form a design document that expresses the specification
In order to ensure the operability of the system implementation and the maintainability of the system, the design documents of the integrator should adopt a standardized form of expression. For example: we can use the standard modeling language UML (Unified Modeling Language) to describe the software design plan, and use Gantt Chart to describe the project schedule.
To the implementation stage of the information system, the main measures of quality control are reflected in the following aspects:
(1) Carefully choose system subcontractors
Subcontracting of information system implementation processes is very common. Since any part of the project will have an impact on the quality of the entire system, the integrator should carefully choose the subcontractor, and try to choose the subcontractor with the corresponding project qualification, rich engineering experience, and technical guarantee.
(2) Follow scientific implementation procedures and technical requirements
The system implementation process should follow the scientific process and relevant technical requirements, and insist on completing the system construction according to the standard implementation process. The implementation process of the system should only be related to the needs and types of the system, and not different from person to person. For example: the development process of software systems should be scientifically developed with reference to the specific requirements of software engineering.
(3) Reasonably conduct periodic tests
The various stages of system implementation should follow the requirements of the quality control plan, conduct system testing in stages, and gradually achieve quality control goals. For example: during the construction of the integrated wiring system, the network tester should be used to measure the quality of the line in time, and the quality problems should be discovered and resolved as early as possible.
In addition, actively cooperating with the work of the supervision agency, training user system maintenance personnel and establishing complete project implementation documents are also important contents to ensure the quality of information system integration.
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