Summary
Summary Unit 22 - Systems Analysis and Design (CS190)
- Institution
- PEARSON (PEARSON)
IT IS VERY EASY T UNDERSTAND AND THE RIGHT ANSWERS
[Show more]
Seller
Follow
Content preview
P2 Systems analysis tools and techniques for modelling business processes:Modelling Business Tools Description Example Diagram Benefits Drawbacks
and Techniques
Entity Relational Diagram This is a sort of diagram *Visual representation *Limited representation of
(ERD) that demonstrates the *Effective connections.
relationships between communication *There is no evidence of
various entities (such as *Easy to understand data manipulation.
users, clients, or other *High flexibility *No industry consensus
objects) in an application exists for notation.
or database. They are
made when a new system
is being designed so that
the database's structure
can be understood by the
development team. They
can also be built on an
existing system to assist
the team in figuring out
how it operates and
identifying and fixing any
problems. Entity
Relationship Diagrams
represent the system and
database using a particular
set of symbols, such as
shapes and arrows.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller edunmojisola. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £7.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
52510 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now