web based online tender

The products are crude palm oil(cpo) and palm kernel(pk). we have 6 (or more) places selling cpo/pk. selling in ton. All users should be registered before participate bidding. The way the system works is as follows: A. User Administrator Level 1 - add / edit / delete user accounts, be it the operator, or any bidder (participant) - add / edit / delete the tender. open the tender, close the tender manually. although the tender may dismantle the auto auto X clock, it can not be borne again. - Level 1 administrators can not see the numbers entered by the bidders. B. User Administrator Level 2 - the same as level 1, the number can see the number inputted by the bidders. C. User Authorizer - just look at the tender and accept (accept) or refuse (reject) the ongoing tender. objections may cause prices to be inconsistent with the desired price of management (too low). Sentral tender rejected. more details of the matrix I will give to the winning project. SYSTEM HOW TO WORK 1. Admin 1 open system / add new tender (there is facility upload document docx / pdf / xlsx) 2. submit, automated system by invitation of email to registered participants 3. login participants see the list of tenders today. tender which can only be seen, but read only. Today's tender is given a link to enter the value / bid number. attachment on point 1 above can be downloaded by participants. products that have not been determined by us are: 3.1 Crude Palm Oil / CPO 3.2 Palm Kernel Sales in units of TON, so bid price in Rupiah per TON. There are 6 specified sales places, I will send a matrix for this project. 4. any incoming bids are given on the system, as in * lap * k * incoming messages. who is the participant who has input, but do not give info what number 5. tenders are usually opened at 10.00 hours and closed automatically at 15.00. admin 1 will check on each of the sales places (3 points) how many participants who bid. If enough, click the button to send a notification to the Authorizer. Authorizer can be selected by admin1. so that means if authorizer 1 is out of town, then admin1 can go to authorizer 2. 6. The Authorizer will see the tender and provide a check mark, at any point of sale the tender / offer can be received / sold. click submit button give notif to admin1 that the tender can already be announced. 7. admin1 can already see the bidding and the winning bidder. click 1 button give email to all bidders to see tender auction. TENDER NAME We are accustomed to using WEB-year / month / date. example WEB-180327 REPORT - the winner of the tender (we will provide sample report) - Price charts from time to time, can be selected range of months / years - the highest bidder of the game (Top 10), the selected range month / year