Testing is often considered the last stage of the developing software application. Discuss at what stages of the system development lifecycles testing could be done and what techniques you would suggest should be used.

Question 6

a.      CASE

The CASE is the specific example or instance for something. The CASE is the particular situations, where it has the legal term for the court proceedings along with medial term.

b.      RAD

RAD stands for “Rapid Application Development” is the process of adoption of a waterfall model, it is also targeted to develop the software in a short time,

c.       Prototyping

Prototyping is the model of the system development in which the prototype uses the early approximation for the final system with the product to build the tested systems.

d.      Timeboxing

Timeboxing is the approach, of the time management as well as task, which sets the rigid constraints, how much time the project takes to complete.

Question 7

Testing is often considered the last stage of the developing software application. Discuss at what stages of the system development lifecycles testing could be done and what techniques you would suggest should be used.

Answer

Testing could be done at the different stages of the system development lifecycles;

·         Requirements analysis

·         Designs

·         Implementation

·         Testing

·         installation

·         Maintenance

There are various techniques for the testing is performed

Nevertheless, at the system development lifecycles, we performed the Bugs and the error at this testing stage.

Question 8

As a part of database security review, you have been asked: Create a password policy; outline such policy Suggest the policy could be enforced and promoted.

Answer

For the review of the database security, the password is the string of characters for the user to prove the identity for the access of the system of organization involving the network of emails.

Now the outline of the policy is;

·         Password Creation

·         Password Change

·         Password Protection

·         Application Development

·         Multi-Factor Authentication

Question 9

a.      What is the purpose of system analysis and what skills a system analyst requires?

The purpose of the system analysis is, to study the systems with its parts for the identification of the objectives. It also has the techniques of problem-solving which improves systems.

The system analyst required these skills;

·         Methodical

·         Logical

·         Personable

·         Qualified

·         Problem-solving skills

b.      Identify the process, data stores and external entities in the above case study.

Processes: Allocate staff jobs, provide cleaning material, purchase cleaning material, deal with a customer, pay the supplier, pay staff

External entities: Customer suppliers

Data stores: Suppliers, Customers, Staff, Job allocation, Staff payment, supplier payment

c) Give THREE reasons why DFDs should be used and give an example from the above case study

·         Because the DFD is based on data, rather than the process.

·         It is the pictorial representation   of the data

·         By the top-down approach, it produced level by level.