namespace Yavsc.Models.Market { using System.ComponentModel.DataAnnotations.Schema; public enum BillingMode {  Unitary, SetPrice, ByExecutionTime } public partial class Service : BaseProduct { public string ContextId { get; set; } [ForeignKey("ContextId")] public virtual Activity Context { get; set; } public BillingMode? Billing { get; set; } // TODO public ServiceSpecification Specification { get; set; } /// /// In euro, either by hour or by release /// /// public decimal? Pricing { get; set; } } }