The objective of reverse engineering is to study the underlying features like requirements, design etc. of a software system or recover and record critical information about the system. The system informationmay include the following: the system structure, the system’s functionality, the dynamic behavior of the system, the design process of the system, the construction, modules, documentation, and the test suites of the system. The purposes for undertaking reverse engineering process are separated into different issues as follows: • Quality issues which include simplification of complex software, removing errors from software thus increasing the quality of the software. • Management issues which include increase in programming standard and to implement better software maintenance techniques.
System analysis and design relates to shaping organizations, improving performance and achieving objectives for profitability and growth. It mainly focuses on systems, processes and technology. In this chapter we mainly discuss the processes used in the software development and models used in the development process. 1.2 Basic System Development Life Cycle Software Development Life Cycle or SDLC is a process used by the software industry to design, develop and test high quality software. SDLC aims to produce high quality software that meets customer expectations, reaches completion within timeframe and cost estimates.
With the use of CASE new software products can replace older ones quicker. Software developers can analyze problems, design the model with the use of CASE tools. The software can be understood and prepared to produce a good product. The requirements of the software developer can be provided with the use of CASE tools. The first early concept of CASE was started
Design Patterns © FAHEEM ANSARY (MS110400056) Design Patterns 1. Abstract The Object Oriented Software Engineering provides a standard solution to problems via Design Patterns. It is considered as a well define way of expressing the software design and this is appreciated by the software engineers across the world. We can classify the design patterns by the type of problems they addresses. Many design patterns are established already and also new will be identified as this is the ongoing process, it captures the knowledge from different stages of the software development life cycle.
FIRST TASKS: 01. Evaluate the different system development life cycle models which can be used for this case study. (LO1.1) What is System Development Life Cycle? The Software Development Life Cycle is a process used by software engineering industry to create, develop and test high standard software. SDLC is the shorten form of Software Development Life Cycle.
Computer aided engineering (CAE) means the use of computer in tasks essential to engineering a product. 41. ADAMS stands for Automatic Dynamic Analysis of Mechanical Systems. True or False 42. CAM stands for Computer Aided Machining.
BOEHM’s Quality Model: Barry W. Boehm is famous for his many services in the field of software engineering. To evaluate the quality of software, Boehm introduced his quality model quantitatively. In this model, the quality of software is defined by predefined set of attributes. This model is decomposed in a hierarchy in which the top concern with end-users while the bottom is of significance to technically inclined personnel. At the highest level of his model, three primary uses are defined by the Boehm, which are as follows:- • As-is utility, the degree to which the as-is software can be used.
· The inner ring consists of context, objectives, environment and goals. · The outer ring consists of task detail, task content, task organization and task flow. Shawn Lawton Henry and Mary Martinson in Accessibility in User-Centered Design state, "User-Centered Design (UCD) is a user interface design process that focuses on usability goals, user characteristics, environment, tasks, and workflow in the design of an interface. UCD follows a series of well-defined methods and techniques for analysis, design, and evaluation of mainstream hardware, software, and web interfaces. The UCD process is an iterative process, where design and evaluation steps are built in from the first stage of projects, through
firstname.lastname@example.org Evaluate different systems lifecycle models. SDLC Overview SDLC, Software Development Life Cycle is a process used by software industry to design, develop and test high quality softwares. The SDLC aims to produce high quality software that meets or exceeds customer expectations, reaches completion within times and cost estimates. • SDLC is the acronym of Software Development Life Cycle. • It is also called as Software development process.
In order to improve the quality of software and control of the project, it is necessary to control the complexity of the software by measuring the relevant aspects. Geometric essence of high-quality program is to investigate the relations between the standards process, and the characteristics of the project, and the quality of the final product, and based on the results, to engineer improvements in both process and product quality. Moreover, we should consider the quality of the entire program life-cycle perspective, and in this regard, we should include metrics that measure the quality level of the maintenance process as another category of software quality