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Forms Report Data modeling Project

What are the purposes for designing forms?

Ans: Forms are designed to show data or to collect data from users. Forms can be used for both input and output process.

Why are report designed?

Ans: Reports are design to present data, information to the users. Forms and reports must be design with great care, these are used directly by the users and the quality, look and feel, usability will greatly influence the users of the system.

What are the fundamental questions required to be asked for designing forms and reports?

Ans: Fundamental questions to be asked with users for designing forms and reports are:

  1. who will use the forms and report?
  2. What is the basic purpose of form and report?
  3. When the forms and reports will be used?
  4. Where does the form or report need to be sent and used?
  5. How many people will to use or view the forms or reports?

What is meaning of user-centered design?

Ans: User-centered design is the approach to design something like forms, reports in case of software system which is designed with motive of meeting preferences of the users. How users\’ information need can be met? Users knowledge level, type of users is also considered while design form and report.

What steps are followed to design forms and reports?

Ans: Prototyping concept is used to design forms and reports. After collecting and understanding users\’ requirements

  1. system designers will design forms and reports,
  2. then those designed forms and reports are given to the user for review
  3. Users will provide feedbacks and suggestions to the designers about the forms and reports.
  4. Then the designers will revise the forms and reports incorporating users suggestions and feedbacks
  5. The revised forms and reports will be given to the users\’ for review.
In this way above steps will be repeated until the users are satisfied with the design of the forms and reports.

What characteristics are usually referred by usability?

Ans: Usability means that the design of the system is supposed to help user and not hinder user performance. Usability helps to evaluate overall performance of system in supporting users to do particular task. Usability typically means these following characteristics:

  1. Speed: Can users complete the task efficiently?
  2. Accuracy: Does the system provide what users expect?
  3. Satisfaction: Do the users like using system?

Why is data modeling? Why is it important?

Ans: Data modeling the method of showing definitions of data, structure of data and relationships between the data. Data model describe nature of organization. Data modeling is important because it provides information about data required to design database, programs, forms, reports. Data are the most important component for all organizations. Characteristics of data for similar kind of organizations will be similar and permanent.

What are the most commonly used format for data modeling?

AnsL: Two commonly used format for data modeling are:

  1. Entity relationship (E-R) diagram and
  2. Class diagram used in OOSAD.
Data models describe characteristics of data independent of their software implementation. Data model helps to represent business rules like cardinality constraints, domain constraints, referential integrity.

What is a conceptual data modeling?

Ans: Conceptual data modeling is method of showing concepts (class or entity) used in the organizations; it shows how data are related to each other, what is the meaning of data.

What is delivered by conceptual modeling?

Ans: Generally, E-R diagram or class diagram is the output of conceptual modeling in the analysis phase.

How DFD and E-R diagrams are related?

Ans: DFD includes data elements like entity and attributes (data sent or received between valid components of DFD). Entity and attributes are major part of E-R diagram. Data store shown in DFD relates to business objects in data model like E-R diagram.

How is data modeling done?

Ans: Data modeling can be done either in top-down approach or bottom-up approach. In top-down approach whole organization is considered, its information requirements, rules used rather than any specific information requirement like sales summary. In case of bottom-up approach business documents like sales summary, employee attendance etc are reviewed to understand data and rules to produce those documents.

What is done in project identification and selection phase?

Ans: Managers and other staffs of the organization will gather together to identify and assess all possible system development projects that the organization should undertake. Then those projects will be reviewed to know which are important and can be conducted using available resources. On the basis of the result of review by managers and staff projects for development are selected.

What are the different sources from which information development request may come from?

Ans:

  1. From managers. Managers may think that their existing system needs improvement to work more efficiently.
  2. From IS managers who want to improve existing system to save money and time.
  3. Planning groups who may find scope for new system or develop existing system to help organization meet its objectives.
  4. From external organizations, like government, which may force organization to have information system.

What are the primary activities performed during project identification and selection?

Ans: The primary activities performed during project identification are:

  1. Identifying potential development projects
  2. Classifying and ranking IS development projects
  3. Selecting IS development projects.