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Q. What are the objectives of software design?
What are the objectives of software design? How do we transform an informal design to a detailed design?
Ans Objectives of software design
The use of the design phase is to plan a solution of the problem specified by the requirements document. This phase is the initial step in moving from the problem domain to the solution domain. In other sense starting with what is needed design takes us toward how to satisfy the needs therefore the basic objectives are:
Non-formal methods of specification are able to lead to problems during coding particularly if the coder is a different person from the designer that is often the case. Software designers don't arrive at a finished design document immediately but develop the design iteratively through a number of different phases. The design process includes adding details as the design is developed with constant backtracking to correct earlier and less formal and designs. The transformation is completed as per the following diagram.
When to Re-Engineer? When the system alter are mostly confined to part of the system then re-engineer that part. When hardware or software support becomes obsolete.
Usability testing is testing of 'user-friendliness'. User interviews, surveys, video recording of user sessions and other methods can be used. Programmers and developers are usuall
Class diagram: A class diagram in the Unified Modelling Language (UML) is a type of static structure diagram that defines the structure of a system by showing the system's classes
Determine the process of software Coding The input to coding phase is the SDD document. In this stage, design document is coded according to module specification. This phase t
What are the characteristics of the software? Software is engineered, not manufactured. Software does not wear out. Most software is custom built rather than being ass
A measure of the severity and probability of undesired effects. Often taken as the easy product of probability and consequence.
Define the process of debugging Generally when developing the code, software developer also carries out some testing. This is called debugging. This unearths the defects that s
Q. Assume that a program will experience 200 failures in infinite time. It has now experienced 100. The initial failure intensity was 20 failures/CPU hr. (i) Determine the cur
What is a user friendly document? Ans) A document is user friendly, when it is designed and written with simple of use, as single of the primary objectives of its design.
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