Page 37 - DCAP210_INTRODUCTION__TO_MICROPROCESSORS

Unit 2: Introduction to Assembly Language

• Mobile applications (“Mobile apps”) run on hand-held devices such as smart phones, tablet Notes
computers, portable media players, personal digital assistants and enterprise digital assistants:
see mobile application development.
• Product engineering software is used in developing hardware and software products. This
includes computer aided design (CAD), computer aided engineering (CAE), computer
language editing and compiling tools, Integrated Development Environments, and Application
Programmer Interfaces.
• A command-line interface is one in which you type in commands to make the computer do
something. You have to know the commands and what they do, and type them correctly.
DOS and UNIX are examples of command-driven interfaces.
• A graphical user interface (GUI) is one in which you select command choices from various
menus, buttons and icons using a mouse. It is a user-friendly interface. Microsoft Windows
and Mac OS are both graphical user interfaces.
• A third party server side application that the user may choose to install in his or her account
on a social media site or other Web 2.0 website, for example a Facebook app.
Applications can also be classified by computing platform.

Quality in an Assembly Process

Situation
The valve assembly process of an automotive supplier had a rolled throughput yield of 75%.

Challenge
A low yield meant loss of production, high labour cost, and the inability of the company to
deliver product on time to the customer.

Impact
The ability to resolve the issues of yield would improve the competitive position of the company
by reducing material and labour costs.
Simons-White Provided
Based on extensive statistical and Pareto analysis, it was decided to target the leading causes
of failures with the valve assembly. The solutions resulted in adding a cleaning operation
prior to the assembly process to ensure cleanliness of components and reduce resistance cased
by friction in the valve.
A Design of Experiment was developed to identify the factors that contributed to leakage in
the assembly. The results of the experiment enabled the team working on the project to
establish settings for the component.
Results

Overall the yield improved to 93%, which delivered an average annual savings of ` 14100000.
Questions:
1. Explain the basic quality of assembly process.

2. Which type quality provided to Simons-White in assembly language?

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