High--the focus of knowledge

Chapter I.

Chapter I.
A single generation network diagram needs to learn to draw, two-generation Network diagram need not learn to draw.

First section:

The concept of information systems is seldom tested, but known.

5 main functions of information system

The choice question: The Enterprise information system roughly divide three kinds, asks is which information system is facing.

Five-Star: Information system development method (very important)

The structural development method corresponds to the waterfall model.

Rapid Prototyping method, users do not know their own needs, fuzzy requirements, first took out the prototype, in this prototype modified. The counterpart is the prototype model.

The model of abandonment is the worse the change, the more it is discarded.

Object-oriented approach: object-oriented development method is how to build a model, 3 stages is very important, the key is modeling.

Example: batching is batch processing. Simultaneous processing of n-matter batches.

Online processing

Example: Planning and analysis, is to analyze the needs of the party, planning is to build what system.

Example: Prototype method and structural method choice problem

Object-oriented is modeling

The key to learning Waterfall model This knowledge point is 5 star knowledge point.

The waterfall model is divided into several stages:

The output from the previous activity is the input to this activity.

The waterfall model is characterized by the importance of 5 stars.

A step-by-step development is a structured approach.

If a model is established, it is modeled as an object-oriented approach.

Top-down is the dominant principle of structured development methods.

Section II:

The construction of information system

3 Star Knowledge points,

4 phases of the life cycle:

1, the production phase of demand analysis refers to the needs of third-party consultants analysis,:

2, development and analysis, is the needs of party B, system integrators

The acceptance stage is also the development stage

3, operation and maintenance, adaptive maintenance (QQ in XP and Win7), troubleshooting, perfect, refers to the present. Preventative maintenance can include troubleshooting, adaptation, and improvement.

The workload of perfect maintenance is the most.

4, the update phase, the corresponding agile development,

Example: After the trial run phase is the acceptance stage.

Section III:

Functional requirements are a must to complete the needs

The database has to be made domestically, which is a design constraint

Iteration

Waterfall is first A after B, after C,

Requirements analysis steps and so on to remember.

Cohesion-poly, low-coupling design principles.

The control range of a module refers to the module itself and its entire sub-module, (Grandpa Control father, also control grandson and so on. ）

DFD/UML structured DFD, object-oriented, UML

White box test:

Combining several units is the integration test.

Code review: Programmers and testers to test

Code walk: Run one side through the computer.

CMM includes only software

CMMI Software + system integration + hardware sourcing (popular)

Fourth quarter

Corba

EJB Sun Inc.

DCOM Microsoft

Bottom line Middleware

Universal Middleware

Integrated middleware

ODBC is a kind of middleware

Transactional middleware

Fifth Quarter

Software architecture

Process build and data building, link artifacts.

Knowledge Base mode:

Speech recognition and Knowledge base recognition

b/s mode easy to deploy

Sixth quarter

Analysis and design of object-oriented system

Class like objects, classes are like drawings of houses.

Mastering the knowledge points in the real problem

Generalization is the antonym of inheritance

Monkey born Monkey is integrated, monkey raw cat is generalization

UML is equivalent to subtraction

Chapter II

20150409

Section I.

UML3 species Map

UML Nine kinds of graphic introduction to Master

UML Professional Modeling Language

. NET is Microsoft's

The Java EE is the Sun Company's

The Java EE component is 5 stars.

20150414

Temporary is a disposable

The goal of the project is to end the goal

High--the focus of knowledge