Providing temporary use of a web-based software application for modeling and simulation of therapeutics for drug discovery and development; providing temporary use of a web-based software application for performing feasibility assessments of therapeutics for drug discovery and development; providing temporary use of a web-based software application for supplying access to mechanistic pharmacokinetic and pharmacodynamic (PKPD) pharmacology model libraries; providing temporary use of a web-based software application for generating reports of scenarios and outcomes of models and simulations of therapeutics for drug discovery and development.