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Design document
1. Iphone app design
The Abacus
1 APP definition:
It’s an app which teaches you how to use Chinese traditional Abacus (a calculator).
2 Introductions:
2.1 What is abacus?
The Abacus, also called a counting frame, is a calculating tool used primarily in parts of Asia
for performing arithmetic processes. Then why should we learn abacus? First, it is fun. With
some practice, you can impress friends with amazing computation skills. Second, abacus is a
rudimentary computer. One can visualize the computer at work by pushing beads and learn
some very basic concepts of modern computers. What’s more, using abacus is a cooperation
of both one’s hands and memory at the same time, thus it’s a great brain exercise even
today.
3 Structure of the APP:
This small APP has 3 parts: tutorial mood; challenge mood; others information.
3.1 Tutorial mood:
The tutorial mood contains a short story which will teach you how an abacus works step by
step, including how to represent certain number, how to do different calculation such as
addition/subtraction/multiplication/division. Every time the user learns a new technique, he
will receive some reward coin whose usage will be explained in later parts.
3.2 The challenge mood:
The challenge mood contains a series of simple story problems for users to solve. And users
will also receive some reward if he can solve a problem fast enough.
3.3 Other information:
In this part of the game, user can view some information about the history of abacus/see the
current ranking/change the look of his abacus.
2. 4 The Flow chart:
This flow chart shows the main flow of the APP
12. On status Off status
6.4 Fonts
The words on the first menu
button:
Font: Berlin Sans FB Demi Bold
Size: 24 pt
Clicked status Color: # F8F5B3
Unclicked status color: # FFFFFF
The words on the second menu button:
Font: Berlin Sans FB Demi Bold
Size: 15.4 pt
Clicked status Color: # F8F5B3
Unclicked status color: # FFFFFF
Num.
Font: Berlin Sans FB Demi Bold
Size: 20 pt
Clicked status Color: # F8F5B3
Unclicked status color: # FFFFFF
The questions
Font: 微软雅黑
Size: 14 pt
Color: # FBDDD5
The rank
Font: Arial
Size: 20 pt
Color: # FFFFFF
The earliest known written documentation of The introduction in the museum page
the Chinese abacus dates to the 2nd century Font: Berlin Sans FB Demi Bold
BC. Size: 13 pt
The Chinese abacus, known as the suànpán(算 Color: # FFFFFF
盤, lit. "Counting tray"), is typically……