One of the common characteristics of technology start ups is that they do not specifically state key assumptions. This is very important so that you can replace assumptions with facts as your business develops. You can't improve what you don't measure.

Key metrics for new ventures are:

Marketing Metrics
Market Definition
Market Share
Value Propositions

Financial Metrics
Cash Flow Break Even
Profitability Break Even
Cost of Selling

Sales Productivity Metrics
Sell Cycle Length
Average Order Size
Close Rate
Quota Achievement
New Rep Ramp Time
Sales Turnover
Sales / Sales Support Ratio

Customer Metrics
Category Share
Repurchase Rate

Click Here to learn more on ways you can improve performance through the use of metrics.