A. INTERESTED RATE
No	Elements	Category	Value	Unit	
1	Market research	Converter	150000	People	
2	Interested ratio by research	Converter	10%	Percent	
3	Economic applicant ratio	Converter	40%, 75%, 65% & 100%	Percent	
4	Interested rate by research	Converter	As formulated	People/quarter	
5	Marketing factor	Converter	0.02	Constant	
6	Marketing budget	Converter	200000	Dollars	
7	Economic marketing ratio	Converter	35%, 60%, 70% & 90%	Percent	
8	Interested rate by marketing	Converter	As formulated	People/quarter	
9	Withdraw applicant ratio	Converter	2%	Percent	
10	Word of mouth factor	Converter	0.5%	Percent	
11	Applicant from worm factor	Converter	As formulated	People/quarter	
12	Applicants	Block	0	People	
13	Graduates (Ghost)	Block	0	People	
14	Interested rate	Flow	As formulated	People/quarter	
15	Lost applicant rate	Flow	As formulated	People/quarter	
 
There are 3 elements which are related to Interested Rate flow. 
Firstly, the Interested rate by research which is the number of people who are interested in ITOA by market research each quarter. This interested rate was impacted by the economic applicant ratio through 16 quarters. In details, the Fraction of Number of Applicants is designed by graphical functions using discrete option which is suitable for the transmission from the end of year1 to the begin of year2. The fraction for 4 quarters in year1 is 40% and 75%, 65% and 100% for year 2,3,4 respectively. 
Formulation: Interested rate by research = economic_applicant_ratio * Interested_ratio_by_research * Market_research
Secondly, the Interested rate by marketing which is the number of people who are potential applicants from marketing spending. This amount of marketing is also subjected to economic factors which is 35%, 60%, 70% and 90% for Year1,2,3,4 respectively. This is also designed by graphical functions using discrete option. 
Formulation: Marketing_factor * economic_marketing_ratio * Marketing_budget
Thirdly, the Applicant from word of mouth factor. The students who gradated can cause another person to study in ITOA with percentage of 0.5%.
Formulation: Graduates * Word_of_mouth_factor