驗證用戶的email
Identify users with their e-mail address 
將下訂單的過程劃分成幾個大步驟（用戶一次處理一個任務，盡量少的填寫輸入）
比如亞馬遜的訂單過程： 
Login 
Choose delivery address 
Choose delivery options 
Enter payment details 
Review and submit the order 
告訴用戶他們在哪兒，將去哪兒
Tell users where they are and where they’re going. 
不要讓下訂單過程不必要的復雜
Don’t make the ordering process harder than it needs to be 
告知用戶一般會產生的疑問
Address common user queries
強調必需填的選項
Highlight required fields 
讓下訂單的過程靈活一些
Make the ordering process flexible 
盡量讓用戶放松
Put users’ minds at ease
比如Tesco有一個告示去告訴用戶在這里購物為什么是安全的： 
可以讓用戶在下訂單最后再次進行確認
Have users confirm their order before buying then provide confirmation 
發送訂單已確認的郵件
Send a confirmation e-mail
根據Jakob Nielsen’s Alertbox, December 8, 200312確認通知郵件應該： 
簡單
Be brief 
告訴用戶他們可能想知道的，比如訂單號
Tell users what they are likely to want to know, such as the order number 
應該象公司客服代表一樣
Should be a real customer service ambassador for the company